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Biodegradation of Crude Oil by Individual Bacterial Strains and a Mixed Bacterial Consortium Isolated from Hydrocarbon Contaminated Areas
10.1002/clen.200700042.abs
A preliminary study was undertaken to determine the optimal conditions for the biodegradation of a crude oil. Among 57 oil‐degrading bacterial cultures isolated from oil‐contaminated soil samples, Bacillussp. IOS1‐7, Corynebacteriumsp. BPS2‐6,Pseudomonassp. HPS2‐5, and Pseudomonassp. BPS1‐8 were selected for the study based on the efficiency of crude oil utilization. Along with the selected individual strains, a mixed bacterial consortium prepared using the above strains was also used for degradation studies. The mixed bacterial consortium showed more growth and degradation than did individual strains. At 1% crude oil concentration, the mixed bacterial consortium degraded a maximum of 77% of the crude oil. This was followed by 69% by Pseudomonas sp. BPS1‐8, 64% byBacillus sp. IOS1‐7, 45% byPseudomonas sp. HPS2‐5, and 41% byCorynebacteriumsp. BPS2‐6. The percentage of degradation by the mixed bacterial consortium decreased from 77 to 45% as the concentration of crude oil was increased from 1 to 12%. Temperature of 35°C and pH 7 were found to be optimum for maximum degradation.
Biodegradation of Crude Oil by Individual Bacterial Strains and a Mixed Bacterial Consortium Isolated from Hydrocarbon Contaminated Areas
10.1002/clen.200700042.abs
A preliminary study was undertaken to determine the optimal conditions for the biodegradation of a crude oil. Among 57 oil‐degrading bacterial cultures isolated from oil‐contaminated soil samples, Bacillussp. IOS1‐7, Corynebacteriumsp. BPS2‐6,Pseudomonassp. HPS2‐5, and Pseudomonassp. BPS1‐8 were selected for the study based on the efficiency of crude oil utilization. Along with the selected individual strains, a mixed bacterial consortium prepared using the above strains was also used for degradation studies. The mixed bacterial consortium showed more growth and degradation than did individual strains. At 1% crude oil concentration, the mixed bacterial consortium degraded a maximum of 77% of the crude oil. This was followed by 69% by Pseudomonas sp. BPS1‐8, 64% byBacillus sp. IOS1‐7, 45% byPseudomonas sp. HPS2‐5, and 41% byCorynebacteriumsp. BPS2‐6. The percentage of degradation by the mixed bacterial consortium decreased from 77 to 45% as the concentration of crude oil was increased from 1 to 12%. Temperature of 35°C and pH 7 were found to be optimum for maximum degradation.
Biodegradation of Crude Oil by Individual Bacterial Strains and a Mixed Bacterial Consortium Isolated from Hydrocarbon Contaminated Areas
Sathishkumar, Muthuswamy (author) / Binupriya, Arthur Raj (author) / Baik, Sang‐Ho (author) / Yun, Sei‐Eok (author)
CLEAN – Soil, Air, Water ; 36 ; 92-96
2008-01-01
5 pages
Article (Journal)
Electronic Resource
English
Biodegradation of hydrocarbon by bacteria isolated from crude oil contaminated soil
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